HOW THEY DO IT! A.Purpose of reproduction 1.Replace the parents with 2 or more of the species 2.# of babies depends on the ability of the species to make.

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Presentation on theme: "HOW THEY DO IT! A.Purpose of reproduction 1.Replace the parents with 2 or more of the species 2.# of babies depends on the ability of the species to make."— Presentation transcript:

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HOW THEY DO IT! A.Purpose of reproduction 1.Replace the parents with 2 or more of the species 2.# of babies depends on the ability of the species to make it to sexual maturity www.saburchill.com/chapters/chap0037.html http://www.dartmouth.edu/~burkl e/Laura%20Burkle%20- %20Research.html http://sofia.usgs.gov/projects/wadingbird_wcas/ http://www.jburroughs.org/scien ce/resources/flower/flowertitle.h tml www.wetwebmedia.com/snailidfaq3.htm

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B.Types of Reproduction 1.Asexual a.Does not mix up the genes b.Offspring are identical to the parent c.Susceptible to being wiped out anemone splitting (1:38) budding (2:47) www.geol.umd.edu/.../eltsite/lectures/sex.html http://www.unitedstreaming.com

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4)Frogs (generalizations – there are exceptions!) a)Male mounts the females and releases sperm as the eggs are released. b)No or very little p.c. c)Better chances of survival www.dailycal.org/article.php?id=16489 Link to video

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b.Internal fertilization – on land 1)No water – need a penis 2)Egg is fertilized in the female 3)Increased chance of survival 4)Parent selection 5)Reptiles (generalizations – there are exceptions!) a)Lay eggs – can go anywhere water is in the eggs b)Little p.c. c)Great chances of survival http://www.worldbook.com/wb/Students?content_spotlight/reptiles/live_reproduction